Help with HTTP redirect in ALL directions

Ok..we found our issue, it actually turned out to be a jquery file that was only effecting older browsers, (IE7). Basically what was happening was that the end users were being prompted to display non secure content and my dev thought because the Content Location in the header referred back to the http address and not the https address that was the issue. However I pretty much ruled that out by applying the rule below. The Content Location in the header is optional so it doesn't adverserly affect anything by removing it, but what I'd like to do is setup a rule that if the content header says http to be redirected to use https. Any thoughts on that?

when HTTP_RESPONSE {

if { [HTTP::header exists "Content-Location"] } {
   HTTP::header remove "Content-Location"
 }
}

Thanks,

Bob